Tree view
Bootstrap 5 Tree view plugin
MDB treeview plugin is used to show hierarchical information which starts from the root item and proceed to its children and their respective children. Each item besides the root has a parent and can have children.
The parent is the node which is higher in the hierarchy and the child the one that is lower. Siblings are items which have one and the same parent. Items can be expanded and collapsed.
Note: Read the API tab to find all available options and advanced customization
Basic example - DOM
Add .treeview class to the container with your list to initialize the component
structure. If you want to nest your lists - wrap a text of a li tag in
a tag and define other ul after it. Add .show class to
the list that you want to expand from the beginning.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="treeview">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul class="show">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
Basic example - JavaScript
You can define whole structure of tree using only JavaScript. There are some props in data that you can use to customize it:
name- defines a text for an itemchildren- defines a nested list and it's childrenicon- defines a custom expanding icon for the nested listshow- defines if list expands from the beginning or notdisabled- defines if list item is disabled or not
<div id="sample-element"></div>
const jsTreeview = document.getElementById('sample-element');
const jsInstance = new Treeview(jsTreeview, {
structure: [
{name: 'One'},
{name: 'Two'},
{name: 'Three', children: [
{name: 'Second-one'},
{name: 'Second-two'},
{name: 'Second-three', children: [
{name: 'Third-one', children: [
{name: 'Fourth-one'},
{name: 'Fourth-two'},
{name: 'Fourth-three'}
]},
{name: 'Third-two'},
{name: 'Third-three', children: [
{name: 'Fourth-one'},
{name: 'Fourth-two'},
{name: 'Fourth-three'}
]}
]}
]}
],
});
Open on item click
Use a data-mdb-open-on-click to define opening lists of treeview by click only on
the arrow or on the whole list item.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="treeview" data-mdb-open-on-click="false">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul class="show">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
Accordion
Use a data-mdb-accordion attribute to enable or disable opening only one list at
the same level.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="treeview" data-mdb-accordion="true">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul class="show">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
Selectable
Use a data-mdb-selectable attribute to set up checkboxes in every list item.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="treeview" data-mdb-selectable="true">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul class="show">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
Expand
Expand your treeview to the particular list using the
expand(ID) method.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="row justify-content-center mb-3">
<div class="col-md-3">
<button type="button" class="btn btn-primary" id="expand-example-button">
Expand first list
</button>
</div>
</div>
<div class="row">
<div class="treeview" id="expand-example">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul id="expand-example-item">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
const expandTreeview = document.getElementById('expand-example');
const expandButton = document.getElementById('expand-example-button');
const expandInstance = Treeview.getInstance(expandTreeview);
expandButton.addEventListener('click', () => {
expandInstance.expand('level-expand-example-item');
});
Collapse
Collapse your treeview using the collapse() method.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="row justify-content-center mb-3">
<div class="col-md-3">
<button type="button" class="btn btn-primary" id="collapse-example-button">
Collapse treeview
</button>
</div>
</div>
<div class="row">
<div class="treeview" id="collapse-example">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul class="show">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul class="show">
<li>
<a>Third-one</a>
<ul class="show">
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul class="show">
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
const collapseTreeview = document.getElementById('collapse-example');
const collapseButton = document.getElementById('collapse-example-button');
const collapseInstance = Treeview.getInstance(collapseTreeview);
collapseButton.addEventListener('click', () => {
collapseInstance.collapse();
});
Custom icons - DOM
You can add your custom icons to your treeview. For non-nested elements - paste code of an
icon in the item. For nested elements - declare span tag with
aria-label="toggle" attribute inside a element and paste there the
code for your icon.
Use a data-mdb-rotation-angle attribute to define a rotation angle of nested
lists icons.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
- Third-one
- Third-two
- Third-three
<div class="treeview">
<ul>
<li><i class="fas fa-dot-circle"></i> One</li>
<li><i class="fas fa-dot-circle"></i> Two</li>
<li>
<a>
<span
aria-label="toggle"
class="ripple"
data-mdb-ripple-unbound="true"
data-mdb-ripple-centered="true"
data-mdb-ripple-color="dark"
>
<i class="fas fa-angle-double-right"></i>
</span>
Three
</a>
<ul class="show" id="custom-icon-list">
<li><i class="fas fa-dot-circle"></i> Second-one</li>
<li><i class="fas fa-dot-circle"></i> Second-two</li>
<li>
<a>
<span
aria-label="toggle"
class="ripple"
data-mdb-ripple-unbound="true"
data-mdb-ripple-centered="true"
data-mdb-ripple-color="dark"
>
<i class="fas fa-angle-double-right"></i>
</span>
Second-three
</a>
<ul>
<li><i class="fas fa-dot-circle"></i> Third-one</li>
<li><i class="fas fa-dot-circle"></i> Third-two</li>
<li><i class="fas fa-dot-circle"></i> Third-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
Custom icons - JavaScript
Add icons to the list elements by pasting an icon code in the
name property. If you want to change the rotatable icon in the nested list - use
icon property instead.
<div id="custom-icons-js"></div>
const customIconsTreeview = document.getElementById('custom-icons-js');
const customIconsInstance = new Treeview(customIconsTreeview, {
structure: [
{ name: '<i class="fas fa-dot-circle"></i> One' },
{ name: '<i class="fas fa-dot-circle"></i> Two' },
{
name: ' Three',
show: true,
icon: '<i class="fas fa-angle-double-right"></i>',
children: [
{ name: '<i class="fas fa-dot-circle"></i> Second-one' },
{ name: '<i class="fas fa-dot-circle"></i> Second-two' },
{
name: ' Second-three',
icon: '<i class="fas fa-angle-double-right"></i>',
children: [
{
name: ' Third-one',
icon: '<i class="fas fa-angle-double-right"></i>',
children: [
{ name: '<i class="fas fa-dot-circle"></i> Fourth-one' },
{ name: '<i class="fas fa-dot-circle"></i> Fourth-two' },
{ name: '<i class="fas fa-dot-circle"></i> Fourth-three' },
],
},
{ name: '<i class="fas fa-dot-circle"></i> Third-two' },
{
name: ' Third-three',
icon: '<i class="fas fa-angle-double-right"></i>',
children: [
{ name: '<i class="fas fa-dot-circle"></i> Fourth-one' },
{ name: '<i class="fas fa-dot-circle"></i> Fourth-two' },
{ name: '<i class="fas fa-dot-circle"></i> Fourth-three' },
],
},
],
},
],
},
],
});
Color
Set the color of an active item using the
data-mdb-treeview-color attribute.
Current color: primary
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="text-center mb-5">
<button type="button" class="btn btn-primary" id="primary">
Primary
</button>
<button type="button" class="btn btn-secondary" id="secondary">
Secondary
</button>
<button type="button" class="btn btn-warning" id="warning">
Warning
</button>
<button type="button" class="btn btn-danger" id="danger">
Danger
</button>
<button type="button" class="btn btn-info" id="info">
Info
</button>
<button type="button" class="btn btn-success" id="success">
Success
</button>
<button type="button" class="btn btn-dark" id="dark">
Dark
</button>
</div>
<div class="row text-center">
<h5>Current color: <span id="current-color">primary</span></h5>
</div>
<div class="row mt-4">
<div class="treeview" id="color-example">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul class="show">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
const buttonsID = [
'primary',
'secondary',
'warning',
'danger',
'info',
'success',
'dark',
];
const currentColor = document.getElementById('current-color');
const colorTreeviewEl = document.getElementById('color-example');
buttonsID.forEach((id) => {
const button = document.getElementById(id);
button.addEventListener('click', () => {
buttonsID.forEach((color) => {
colorTreeviewEl.classList.remove(`treeview-${color}`);
});
colorTreeviewEl.classList.add(`treeview-${id}`);
currentColor.innerText = id;
})
});
Line
Use a data-mdb-line attribute to set up an additional line in every nested list.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="treeview" data-mdb-line="true">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul class="show">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
Disabled - DOM
Add .treeview-disabled class to the a (if nested) or
li tag to disable your list item. You can expand disabled items, but you can't
select them.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="treeview" data-mdb-selectable="true">
<ul>
<li>One</li>
<li class="treeview-disabled">Two</li>
<li>
<a>Three</a>
<ul class="show">
<li>Second-one</li>
<li>Second-two</li>
<li>
<a class="treeview-disabled">Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
Disabled - JavaScript
To generate a disabled list item, use disabled property.
<div id="disabled-element"></div>
const disabledTreeview = document.getElementById('disabled-element');
const disabledTreeviewInstance = new Treeview(disabledTreeview, {
structure: [
{ name: 'One', disabled: true },
{ name: 'Two' },
{
name: ' Three',
show: true,
children: [
{ name: 'Second-one' },
{ name: 'Second-two' },
{
name: ' Second-three',
disabled: true,
children: [
{
name: ' Third-one',
children: [
{ name: 'Fourth-one' },
{ name: 'Fourth-two' },
{ name: 'Fourth-three' },
],
},
{ name: 'Third-two' },
{
name: ' Third-three',
children: [
{ name: 'Fourth-one' },
{ name: 'Fourth-two' },
{ name: 'Fourth-three' },
],
},
],
},
],
},
],
});
Filter
Use the .filter(string) method to expand list items that meet your requirements.
- One
- Two
-
Three
- Second-one
- Second-two
-
Second-three
-
Third-one
- Fourth-one
- Fourth-two
- Fourth-three
- Third-two
-
Third-three
- Fourth-one
- Fourth-two
- Fourth-three
-
Third-one
<div class="row mb-4 justify-content-center">
<div class="col-md-6">
<div class="form-outline">
<input type="text" id="form1" class="form-control" />
<label class="form-label" for="form1">Find in the treeview</label>
</div>
</div>
</div>
<div class="row">
<div class="treeview" id="filter-example">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul>
<li>Second-one</li>
<li>Second-two</li>
<li>
<a>Second-three</a>
<ul>
<li>
<a>Third-one</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
<li>Third-two</li>
<li>
<a>Third-three</a>
<ul>
<li>Fourth-one</li>
<li>Fourth-two</li>
<li>Fourth-three</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
const filterTreeview = document.getElementById('filter-example');
const filteringInput = document.getElementById('form1');
const filterTreeviewInstance = Treeview.getInstance(filterTreeview);
filteringInput.addEventListener('change', () => {
const value = filteringInput.value;
filterTreeviewInstance.filter(value);
});
Tree view - API
Usage
Via class
<div class="treeview">
<ul>
<li>One</li>
<li>Two</li>
<li>
<a>Three</a>
<ul>
<li>Second-one</li>
<li>Second-two</li>
<li>Second-three</li>
</ul>
</li>
</ul>
</div>
Via JavaScript
var myTreeview = new Treeview(document.getElementById('myTreeview'), {
structure: [
{name: 'One'},
{name: 'Two'},
{name: 'Three', children: [
{name: 'Second-one'},
{name: 'Second-two'},
{name: 'Second-three'}
]},
]
});
Via jQuery
Note: By default, MDB does not include jQuery and you have to add it to the project on your own.
$('.example-class').treeview(options);
Options
| Name | Type | Default | Description |
|---|---|---|---|
treeviewColor
|
String | 'primary' |
Defines a text and background color for an active or hovered item |
openOnClick
|
Boolean | true |
Enables opening list by clicking only on the icon |
selectable
|
Boolean | false |
Setup checkboxes for the every list item |
accordion
|
Boolean | false |
Allows only one list on the same level to be opened |
rotationAngle
|
Number | 90 |
Defines a rotation angle of the icons in nested lists |
line
|
Boolean | false |
Adds a line to every nested list |
Methods
| Name | Description | Example |
|---|---|---|
dispose
|
Destroys a Treeview instance |
myTreeview.dispose()
|
getInstance
|
Static method which allows you to get the tree view instance associated to a DOM element. |
Treeview.getInstance(myTreeviewEl)
|
collapse
|
Collapses every list in treeview |
myTreeview.collapse()
|
expand('level-id')
|
Expands a treeview to the list with a particular ID |
myTreeview.expand('level-sampleItems')
|
filter(string)
|
Expands list items that meet your requirements |
myTreeview.filter('sample')
|
var myTreeviewEl = document.getElementById('myTreeview');
var treeview = new Treeview(myTreeviewEl);
treeview.collapse();
Events
| Name | Description |
|---|---|
select.mdb.treeview
|
This event fires immediately when one of the treeview checkboxes are changed. Selected
items are available with items property of the event.
|
activeItem.mdb.treeview
|
This event fires immediately when one of the treeview list items are selected by
click. Selected item is available with
item property of the event.
|
var myTreeviewEl = document.getElementById('myTreeview')
myTreeviewEl.addEventListener('select', (e) => {
// do something...
})
Import
MDB UI KIT also works with module bundlers. Use the following code to import this component:
import Treeview from 'mdb-treeview';